EP 3073083 B1 20180314 - EXHAUST GAS CONTROL APPARATUS
Title (en)
EXHAUST GAS CONTROL APPARATUS
Title (de)
ABGASSTEUERUNGSVORRICHTUNG
Title (fr)
APPAREIL DE COMMANDE DE GAZ D'ÉCHAPPEMENT
Publication
Application
Priority
JP 2015062893 A 20150325
Abstract (en)
[origin: EP3073083A1] An exhaust gas control apparatus for an internal combustion engine includes a urea adding valve (40), a selective reduction-type catalyst (41, 42), an ammonia slip catalyst (43), and a fuel addition device (30). An electronic control unit (56) is configured to control the fuel addition device (30) as an amount-increasing processing when the amount of nitrogen oxide flowing out from the selective reduction-type catalyst (41, 42) is not reduced to a desired amount with respect to the amount of the nitrogen oxide flowing into the selective reduction-type catalyst (41, 42) and when a catalyst bed temperature of the ammonia slip catalyst (43) is within a temperature region where the nitrogen oxide in exhaust gas can be reduced in the ammonia slip catalyst (43) by selective catalytic reduction in which hydrocarbon is used as a reducing agent such that the amount of the hydrocarbon in the exhaust gas flowing into the ammonia slip catalyst (43) is increased.
IPC 8 full level
F01N 3/20 (2006.01); F01N 3/10 (2006.01); F01N 3/36 (2006.01); F01N 9/00 (2006.01); F01N 13/00 (2010.01)
CPC (source: EP RU)
F01N 3/103 (2013.01 - EP); F01N 3/106 (2013.01 - EP); F01N 3/2066 (2013.01 - EP); F01N 3/36 (2013.01 - EP); F01N 9/00 (2013.01 - EP); F01N 13/009 (2014.06 - EP); F01N 3/103 (2013.01 - RU); F01N 3/106 (2013.01 - RU); F01N 3/2066 (2013.01 - RU); F01N 3/36 (2013.01 - RU); F01N 9/00 (2013.01 - RU); F01N 13/009 (2014.06 - RU); F01N 2610/02 (2013.01 - EP); F01N 2610/03 (2013.01 - EP); F01N 2900/0416 (2013.01 - EP); F01N 2900/1602 (2013.01 - EP); F01N 2900/1616 (2013.01 - EP); F01N 2900/1621 (2013.01 - EP); Y02T 10/12 (2013.01 - EP); Y02T 10/40 (2013.01 - EP)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 3073083 A1 20160928; EP 3073083 B1 20180314; JP 2016183563 A 20161020; JP 6187519 B2 20170830; RU 2628256 C1 20170815
DOCDB simple family (application)
EP 16162018 A 20160323; JP 2015062893 A 20150325; RU 2016110587 A 20160323